Since I am a total dummy on these kind of technical matters but still very curious, how and when( I mean does it also do a feedback during driving or only during parking?) does the Aptera feed solar energy from the panels, back into the batteries…
While I can’t say with 100% certainty that this will be the case with Aptera, in solar car racing, the solar array, battery bank and wheel motor(s) are, effectively, all electrically in parallel. What that means is that any energy coming from the solar array can go either to the batteries or to the motor(s) or shared by both. When at a stop light, of course the motor(s) aren’t consuming any energy so, in this case all the solar is going to the batteries unless they happen to be fully charged. If at any time the motor needs more energy than the array can provide, the difference is made up for by the batteries.
I remember this question being asked on some forum with a person from Aptera taking questions, and the answer was that the panels would contribute charge while driving, and while charging at level 1 or II, but not while DC fast charging.
The batteries are charged either from the connection to a charger or from the solar panels. Those are two independent circuits that work together as needed. The solar charging should work while the car is being driven. Its would not solar charge as fast as driving would drain the battery. It should appear as better range during the daytime because of the solar power.
That is a generic description of solar charging. If Aptera has a different implementation please post a correction.
While it is true that you can’t actually charge and discharge a battery simultaneously, it is quite common to have a charging source, a battery, and a load, all connected in parallel so it looks like you are charging and discharging simultaneously.
If the charging source can deliver more current than the load requires, then the excess current will be used to charge the battery. If the charging source delivers less current than the load required, then the battery will supply the extra current needed. This switching between charging and discharging will happen automagically as the charging source and load vary.
Alain and Charles both summed it up as well
This reply was modified 4 months, 2 weeks ago by V Pilot.